# frozen_string_literal: true

module HasStates
  module Stateable
    extend ActiveSupport::Concern

    included do
      has_many :states, class_name: 'HasStates::Base',
                        as: :stateable,
                        dependent: :destroy
    end

    # Instance methods for managing states
    def add_state(type, status: 'pending', metadata: {}, state_class: HasStates::State)
      states.create!(type: state_class.name, state_type: type, status: status, metadata: metadata)
    end

    def current_state(type)
      states.where(state_type: type).order(created_at: :desc).first
    end

    def current_states(type)
      states.where(state_type: type).order(created_at: :desc)
    end
  end
end